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This is Episode 128. How does a bird travel thousands of miles across the globe only to return to the exact same backyard or nest site year after year? This episode explores the fascinating science behind avian navigation. Learn the difference between simple orientation and "true navigation," uncovering how birds reach specific destinations they have never even visited before.

The discussion dives into the bird’s "map-and-compass" toolkit, highlighting a range of incredible adaptations. From internal biological clocks and genetic blueprints to the ability to "see" magnetic fields through quantum physics, the episode breaks down how birds interpret the world around them. Whether they are tracking the sun, the stars, or even atmospheric scents, birds take a multi-sensory approach to get from one place to another.

Finally, the episode examines the role of experience versus instinct, explaining how juvenile birds navigate their first solo journeys and how seasoned adults build complex mental maps of the planet.

Link to this episode on the Science of Birds website

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In each Random Bird Thursday (RBT) episode, the goal is to highlight a bird species that probably isn't going to get featured in a full-length podcast episode. These are birds we might overlook, even though they certainly deserve some appreciation and attention.

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⚠️ SPOILER ALERT!

The featured species in this episode is the Groundscraper Thrush (Turdus litsitsirupa)

Groundscraper Thrush sounds: Wikimedia file and Xeno Canto recording XC347146)

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Episode 127 of The Science of Birds is Ivan Phillipsen’s annual review of fascinating ornithology stories from 2025. Learn about a handful of standout studies that deepened what we know about birds, from major developments in global bird taxonomy to surprising insights about behavior, evolution, and conservation.

After a few featured deeper dives, the episode shifts into a rapid-fire “Speed Round,” spotlighting a flurry of bite-sized discoveries.

The episode wraps with some notable 2025 taxonomy updates (splits, lumps, and reclassifications) and a brief personal year-in-review for Ivan and the podcast itself.

Link to this episode on the Science of Birds website

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